Coherent Breathing
The pace most adults settle into. 5.5 seconds in, 5.5 out.
Start guided sessionThe pattern
- Breathe in5.5 seconds
- Breathe out5.5 seconds
What "resonance" means
Your blood pressure, heart rate and breathing all oscillate. For most adults, those oscillations line up most strongly somewhere between five and six breaths a minute. Breathe at that pace and the swings in heart rate get large and smooth — a state usually described as cardiorespiratory resonance.
That is why 5.5 breaths a minute keeps appearing: it is the average resonance frequency of an adult. It is also, not coincidentally, close to the pace of a rosary, a mantra, and a slow lullaby.
The one to build a habit around
If you only ever use one technique on this site, make it this one. It has no breath-holding, no fast breathing, and no contraindications worth worrying about, so it can be practised daily and for long stretches.
Most protocols in the research use ten to twenty minutes a day. Five minutes is still worth doing.
Finding your own pace
Individual resonance frequency varies, roughly between 4.5 and 6.5 breaths a minute, and taller people tend to sit at the slower end. Try 5.5 first; if it feels rushed, use the pace control to slow it down, and if you feel short of air, speed it up slightly. The right pace feels boring, not challenging.
How to do it without the app
- Sit comfortably or lie down.
- Breathe in gently through the nose for about 5.5 seconds.
- Breathe out through the nose for about 5.5 seconds, with no pause between.
- Keep the breath quiet and unforced.
- Continue for 5 to 20 minutes.
Safety
- No breath-holding, so this is suitable for most people including during pregnancy.
- If you feel short of air, speed the pace up slightly rather than pushing through.
What the evidence says
Resonance-frequency breathing is the best-supported technique here. Randomised trials and meta-analyses report improvements in heart rate variability, blood pressure and self-reported anxiety, with the clearest results when practised daily over several weeks.
A plain-English summary for a general audience, not a systematic review. See the medical disclaimer.